<template>
    <h2>我是About的内容</h2>
</template>

<script>
export default {
    name:'About',
    // 通过路由规则，进入该组件时被调用
    beforeRouteEnter(to,from ,next){
        console.log('beforeRouteEnter',to,from);
        next()
    },
    // 通过路由规则，离开该组件时被调用
    beforeRouteLeave(to,from ,next){
        console.log('beforeRouteLeave',to,from);
        next()
    }
}
</script>

<style>

</style>